# ActiveCampaign Match All API

**Canonical:** https://apis.io/apis/activecampaign/activecampaign-match-all-api/  
**Provider:** ActiveCampaign — https://apis.io/providers/activecampaign/  
**Base URL:** https://youraccountname.api-us1.com/api/3  
**Documentation:** https://developers.activecampaign.com/reference/overview

ActiveCampaign Match All API is one of 57 APIs that [ActiveCampaign](https://apis.io/providers/activecampaign/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Match All. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and authentication docs.

Return all Contact id's that match the given Segment and provided Additional Criteria

## Machine-readable artifacts (3)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/activecampaign/refs/heads/main/openapi/activecampaign-match-all-api-openapi.yml
- **Documentation** — https://developers.activecampaign.com/reference/overview
- **Authentication** — https://developers.activecampaign.com/reference/authentication

## Other ActiveCampaign APIs (12)

- [ActiveCampaign Accounts API](https://apis.io/apis/activecampaign/activecampaign-accounts-api/)
- [ActiveCampaign Addresses API](https://apis.io/apis/activecampaign/activecampaign-addresses-api/)
- [ActiveCampaign AI API](https://apis.io/apis/activecampaign/activecampaign-ai-api/)
- [ActiveCampaign Automations API](https://apis.io/apis/activecampaign/activecampaign-automations-api/)
- [ActiveCampaign Branding API](https://apis.io/apis/activecampaign/activecampaign-branding-api/)
- [ActiveCampaign Broadcasts API](https://apis.io/apis/activecampaign/activecampaign-broadcasts-api/)
- [ActiveCampaign Bulk Import API](https://apis.io/apis/activecampaign/activecampaign-bulk-import-api/)
- [ActiveCampaign Calendars API](https://apis.io/apis/activecampaign/activecampaign-calendars-api/)
- [ActiveCampaign Campaigns API](https://apis.io/apis/activecampaign/activecampaign-campaigns-api/)
- [ActiveCampaign Contacts API](https://apis.io/apis/activecampaign/activecampaign-contacts-api/)
- [ActiveCampaign Credits API](https://apis.io/apis/activecampaign/activecampaign-credits-api/)
- [ActiveCampaign Custom Objects API](https://apis.io/apis/activecampaign/activecampaign-custom-objects-api/)

## Tags

Match All

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/activecampaign/activecampaign-match-all-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/activecampaign/.